stell



A. AND J. STELL- DOFFING APPARATUS FOR SPINNING, DOUBLING, TWISTING, AND LIKE MACHINES.

' APPLICATION men SEPT. 15. I920.

11,429,375; PatentedSept.19,1922.

3 SHEETSS'HEET 1.

I A. AND I. 'STELL. DOFFING APPARATUS FOR SPINNING, DOUBLING, TWISTING, AND LIKE MACHINES.

APPLICATION FILED SEPT. I5. I920.

1,429,375, Patented Sept. 19 1922;

3 SHEETS-SHEET 2,

A. AND J. STELL- DOFFING APPARATUS FOR SPINNING, DOUBLING, TWISTING, AND LIKE MACHINES.

APPLICATION FILED SEPT-15, 1920.

Patented Sept. 19, 11922,

' 3 SHEETS-SHEET 3.

Lil-.7]

UNITEE stares PATENT OFFICE.

ALFRED STELL, 0F STEETON, AND JOHN STELL, OF KEIGHLEY, ENGLAND.

IDOFFING: APPABATUS ITDB SPINNING, DOUBLING, TWISTING, AND LIKE MACHINES.

Application file-:1 fieptember 15, 1920.

To (/JZ whom it may concern Be it known that we, ALFRED STELL and JOHN STELL, subjects of the King of Great Britain, and residents, respectively, of Green Hill, Steeton, in the county of York, England, and 3a Devonshire Street, Keighley, aforesaid, have invented a certain new and useful Improvement in Dofiing Apparatus for Spinning, Doubling, Twisting, and like Machines, of which the following description, having reference to the accompanying sheets of drawings, is a specification.

Our invention relates to dofling apparatus for machines known as cap spinning, doubling, twisting and like machines, although certain features thereof may be employed in connection with fiyer or other spinning and like machines. Our said invention consists in an improved arrangement and construction of the receptacles for the full and empty bobbins and in the devices for moving or operating the same where by the functions of doiiing are performedin a simplerand more eflicient manner than is the case with such receptacles and their operating devices as heretofore constructed.

In order that our said invention may be readily understood, we have hereunto appended three sheets of drawings illustrative or receptacles hereinafter described and the bar upon which they are mounted.

Figure 5 is a detail, rear elevation, of one of the bobbin boxes or receptacles.

Figure 6 isaside elevation of-one' of the said receptacles.

Fig. 7 is a pla-n'ofone of our improved cap supports. r

Fig. 8 is an end elevation thereof.

Figs. -11 to 8 inclusive are drawn toan enfront elevation ofthe parts Serial No. 410,501.

larged scale as compared with the other views.

Similar letters and figures of reference indicate like parts throughout the several views.

A, A represent the top and bottom rails of the machine, and B the spindle rail, which latter is capable of being raised and lowered in the ordinary manner by means of the racks a and pinions a operated from the hand wheel a? through the gear wheels a at The spindles 1 have caps 2 mounted upon them while the lifter plate 3 is reciprocated in the common and well known manner.

We also employ the usual and well known means in connection with the lifter rail whereby when doffing operations are to be performed the device for reciprocating said lifter plate 3 mechanically may be put out of gear and said lifter plate 3 operated by hand.

Mounted in appropriate bearings as those 5 is a shaft 5 upon which are mounted gear wheels 6 which gear with racks 6 while said shaft 7) has fixed upon it a hand lever or the like 72 by which the shaft 6 is oscillated and the racks b raised into the position illustrated in Fig. 3 or lowered therefrom into the position shown. in Figs. 1 and 2. These racks Z)" carry bearings 0 "within which reciprocate racks 0 The racks c are reciprocated by pinions c mounted upon the shaft 0*. An appropriate handle as c is mounted on the shaft 0 by which the racks 0 may be moved towards or away from the framework C. The said racks 0 have fixed upon them a plate (Z eX- tending the length of the frame such plate (l having fixed upon it at desired intervals brackets (Z which carry a bar (Z also extending the length of the machine. Mounted upon the bar (Z are a series of boxes or receptacles 6, these also extending throughout the whole length of the frame. The boxes or receptacles are adapted to slide upon the bar (Z, and they are moved simultaneously lengthwise of said bar by means of the handle f fulcrumed at f and engaging with projecting parts or ears 6 formed or mounted upon brackets c on one of the receptacles. These boxes or receptacles are for the re ception of full bobbins and empty bobbins y, the said empty bobbins y being supplied to these receptacles by the operative during spinning operations when such receptacles occupy the positions indicated by Fig. 2, wherein the bobbins are approximately midway between the series of spindles'l.

One portion 6 of each receptacle is in the form of a vertically disposed tube and is for the reception of an empty bobbin, an opening or slot 6 being made in the base and sides of said receptacles in order that same may be passed laterally over the spindles fornthe purposes lriereinafter described. The lower flange of the empty bobbin y is supported by the part c of the base of the receptacle. These receptacles, as shown by F 4i, 5 and 6, lit closely against each other the space intervening be tween one vertically disposed tube 6 and the next forming a chamber or holder for the reception of a full bobbin somewhat as shown in broken lines by Fig. 4:. A. notch is cut out of the end of each receptacle as shown by said F ig. 4t and the straight or regular end or surface of the neighbouring receptacle 6 extends alongside said notch to form a slot for the purpose referred to.

Extending lengthwise the frame is a shaft h preferably rectangular in cross section such shaft having mounted upon it a num. ber of depending arms 7L1 provided with. extending parts or shoes 7L2 these "being for H the purpose or supporting the full bobbins in the manner hereinafter described. Normally these parts If occupy positions ap proximately mid-way between the series of spindles 1. During dotting operations the shaft it may be moved longitudinally by its operatinghandle ]L3 to bring said shoes opposite to said spindles and beneath the flanges of the full bobbins The operat ing handle IE3 is provided with an extend ing pin ll which takes through openings i. the end frame of the machine or in the bracket 71f, and when said. pin h is in one position in said end frame the arms and shoes /t 'are in positions clear of the bobbins; However when dotting ope 'ations are to be performed the shalt It is moved horizontally by the handle it" and immediately the pin [2, is clear of the opening through which it takes the shoes it are then in posi' tion opposite to or in aliginnentwi-th the spindles 1.

Mounted in suitable bearings m are a series of racks m operated by quadrants m fixed upon a shaft m at one end of which is a lever arm m having a handle m by which it is moved. These racks we, carry a plate or bar a extending lengthwise the machine and having" mounted upon it plates n having slots a of su'lficient width to receive the necks 2 of the caps 52 but su'lliciently narrow to prevent vertical movement heads 2 of said caps 2 therethrough. The bar a is capable of being moved from the position shown. .in Fig. 3 to a position where when the caps are raised as hereinafter described the plate will pt ss the necks 2 and support the heads 2 while they are provi ded with short upwardly extending lips a for the purpose of preventing the heads 2* of the caps 2 from being easily dislodged from said. holders if. The movement of said plate a is effected by said handle m which is moved. from the position shown in Fig. 1. wherein it engages with a notch in the quadrant plate m .to the position wherein said lever will engage a notch m in said plate m. Thus the ope 'ative may easily tell when the correct amount of movement has been given to said plates it";

Also carried by the plate a by means of brackets 0 is a plate 0 extending lengthwise the machine and to this plate 0 are hinged at o the thread guide boards 0? and dividing plates 8. Thus when said plate n is moved away from the top rail A it carries with it the parts a the boards 0 and the dividing plates or tins 8, while when said tins s are automatically moved as here inafter described they carry with them the said boards 0 Fixed upon the part s carrying the dividing plates .9 is a lever 25 which is connected by a chain to an arm extending rearward from the spindle rail l3. Normally, that is when the parts are in the spinning position, the chain is somewhat slack, however when the spindle rail is lowered as during dotling operations this chain becomes tight or taut and lowers said lever t thus swinging the parts 8 and 0 upon their hinge 0 moving them from the position shown in Fig. 1 into that shown in 3 wherein the plates 8 are moved entirely away from the caps 2 and spindles 1; On the rising of the spindle rail these parts either by gravity or assisted by counterbalancing weights or springs return to their normal. positions. The chain .is slack enough to allow. the necessary reciprocations of the lifter plate 3 during; spinning operations, while on. the further lowering of said plate 3 during dotting operations said connection moves said plates a as desi'sribed.

The usual rod. o for cruising the severing or breaking of the threads is carried by lever arms, these being supported .by the rod v carried by brackets mounted upon the plate (Z.

The actions of our improved apparatus are as follows Taking; .it that the full bobbins have received their complement of yarn and it is desired to doitfor remove same from their spindles and substitute therefor a series of empty bobbins 7 the handle 72- is moved so to withdraw the pin hi from its opening and carry the shoes 71/2 opposite to the spindles fl and by releasing said handle 70 these shoes are allowed to move by gravity towards said spindles 1. The spindle rail B is then raised by means of the hand wheel. a to a position wherein the plates n are opposite the necks 2 ol the caps 2 this position oi? the spindle rail being determined by same coming into contact with an appropriate fixture on the framing C ol the frame. The bar nis then advanced by the quadrants m to support the caps 2 in manner hereinbefore described, after which the litter plate is raised to such a position that the shoes ft occupy positions between the lower endsof the full bobbins and the upper ends of the wharles 4 on which the shoes it are passed beneath the bobbins flanges, where they are held by the pin If taking into another openring in the framework 1C formed in the proper position for this purpose. The litter plate 3 is then lowered by hand to approximately the position shown 1n Fig. 3, and the spindle rail also lowered until the upper ends of the spindles l are slightly below the lower ends of the caps 52, the full bobbins a: being supported by the shoes it in the manner indicated in broken lines by said Fig. 3. After these operations the plate a is returned so as (to carry the caps 2 into position in proximity to the beam or rail A on which the racks 0 are advanced by their pinions c to pass the receptacles e laterally beneath the full bob bins a; the slots between the receptacles 6 re ceiving the spindles after which the receptacles c and other parts carried by the plate (Z are raised by the rack b and wheel Z9 carrying the full bobbins upwardly until the bottoms of the receptacles e and the lower ends of said full bobbins are above the upper ends of the spindles 1. on which the receptacles 0 are moved by the lever f so as to bring the empty bobbins in the tube like parts 6 of the receptacles vertically above the spindles l. The racks Z1 are then lowered passing the empty bobbins 4 over the spindles 1, this movement being continued until the receptacles e are below the lower ends of the bobbins thus placed on the spindles when said receptacles are withdrawn by the rotation of the pinions 0 The shaft 72. is then oscillated to allow the empty bobbins to fall upon the upper ends of the wharles 4 and the .rail it again advanced to cause the caps 2 to occupy positions vertically over the spindles 1. The spindle rail B is raised suliiciently for the spindles 1 to support said caps 2 after which said rail 12 is returned in proximity to the bar or beam A. The spindle rail B is then lowered to the spinning position and the lifter 3 raised. The receptacles e are then shifted to carry the full bobbins supported thereby to positions opposite to the spindles 1 and the rod 2; turned over so as to rest upon the threads extending to said full bobbins, so as to sever them on the rotation of the empty bobbins ;1

During the descending of the lifter rail .3 the dividing plates or tins a will be raised into the position shown by Fig. 8 and re turned to their normal. positions on the rais--- ing oil? said. rail B in. the manner hereinbefore described.

Such being the nature and object of our said invention what we claim is 1. In a machine of the character described, the combination with a series 01' spindles, a series of bobbin receptacles supported. at one side of the spindles, means for effecting relative vertical and lateral movement between the spindles and bobbin receptacles, and means for moving the re ceptacles longitudinally of the series of spindles.

2. In a machine of the character described, the combination of a series of spindles, a series of bobbin receptacles supported at one side of the bobbins, means for moving the receptacles to and from a position over the spindles, means for effecting relative vertical movement between the spindles and receptacles, and means for moving the receptacles longitudinally of the series of spindles.

3. In spinning, doubling, twisting and like machines, a series of spindles, a series of caps loosely mounted thereon, and bifurcated supports for said caps, the extremities of said bifurcated parts being deflected upward for retaining said caps in position.

l. In spinning, doubling, twisting and like machines, the combination of a series of spindles, a series of caps mounted thereon, a series of supports for said caps, a bar carrying said cap supports, and a series of separators carried by said bar.

5. In spinning, doubling, twisting and like machines, a series of bobbins, receptacles for said bobbins, curved parts forming vertical walls in said receptacles having openings for the passage of the spindles, plates forming the bases and side walls of said receptacles, a bar carrying said receptacles, and means for moving said bar longitudinally to vary the relative positions of the several spindles and receptacles.

6. In spinning, doubling, twisting and like machines, a series of spindles, a rail supporting said spindles, caps mounted on said spindles, supports for said caps, a series of bobbins fitting over said spindles, means for rotating said bobbins, a lifter plate for traversing said bobbins, means for supporting said bobbins on said. spindles during do'ffing operations, a series of receptacles having one set of compartments for the reception of full bobbins, and one set of compartments for the reception of the empty bobbin, means for supporting and traversing said receptacles, a series of separators, supports therefor, and a connection between said supports and the spindle rail.

7 In spinning, doubling, twisting and like machines, a series of spindles, bobbins for taking over said spindles, a series of receptacles having two. sets of compartments, one set being for empty bobbins, and the other set for full bobbins, said receptacles being formed of sheet metal plates shaped to form the series witheurved vertical walls, slots in said walls and base pieces ofthe receptacles, certain of these slots being formed :by one section having a notch fitted against a neighbouring section havinga complete vbase piece, means for raising and lowering said receptacles, traversing them to positionsabove the spindles, and means for moving them so that one series may at one time occupy positions over the spindles and at another time the other set or series will occupy positions vertically over said spindles.

8. In a machine 01' the character described, the combination with a series of spindles, of a series of bobbin receptacles including a series of holders for empty bobbins, corresponding in number to the spindles, and having means between said holders for engaging bobbins on the spindles, and means for effecting relative lateral and vertical movements between the spindles and receptacles to carry filled bobbins :Erom alignment with the spindles and position empty bobbins in alignment therewith.

ALFRED STELL. JOHN STELL. 

